This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A measuring an inside diameter of 19.3 mm (0.76 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 24.1 mm (0.95 in), catalogued under part number H90M2.4X19.3. It compresses into its gland to block fluid or gas migration across a joint.
The material holds up against petroleum-based oils, many alcohols, and hydraulic fluids. Buna-N (Nitrile) delivers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones.
Maintenance and OEM teams specify it across hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.
This item is sold individually under part number H90M2.4X19.3. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 2.4MM CS X 19.3MM ID BLACK BUNA 90D
Actual Outside Diameter 24.1 mm (0.95 inch)
Actual Cross Section 2.4 mm (0.094 inch)
Actual Inside Diameter 19.3 mm (0.76 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity